Daniel Rex wrote:
That's an interesting tale! I've found 7220s a weird Mac, very
different to the 7200-7600 series. The RAM is a tricky one. It may be
there is an upper limit issue. Have you read the "Low End Mac" page on
the 7220-4400? The 160MHz model's mobo can only use 32Mb dimms to a
max of 96Mb, the 200MHz model can take 64Mb dimms to 160Mb max. I know
I've had a 7220/200MHz model running ok with 128Mb RAM (32+32+64), but
I have never seen a 160MHz model.
http://www.lowendmac.com/ppc/4400.shtml
You probably know the 7220s "die" when the mobo battery goes flat
(make your own replacements with 3 x 1.5V AAAs and a battery holder)
and the power supplies are also rare!
cheers,
-Daniel
Thanks Daniel, I do have one that won't boot (out of the four in my
shed!!) so I'll try the battery trick.
All of them are 7220/200s. I got the G3 one working with 64 / 32 / 32
(but I had been hoping to do 64 / 64 / 64) - the other two 64s went into
the IBM (but it felt weird putting an Apple-branded module into an IBM)
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